Dynamic Diagram for the Product of Two Fractions

Use the sliders to select numerators and denominators for your fraction product.
Use you paper and pencil to get the product, then click the check box to check your answer.
How does the diagram explain the product of the two fractions?
How does the digram help explain how to get the product of the two fractions?
Click the check box to "Show/Hide the Reduction Factorization."
Explain how the reduction fatorization leads to the answer in lowest terms.